Fix url generation for querystring.
Fix url generation for querystring.

unl/UNL_UCBCN_Frontend,unl/UNL_UCBCN_System,unl/UNL_UCBCN_Frontend,unl/UNL_UCBCN_System,unl/UNL_UCBCN_Frontend,unl/UNL_UCBCN_System,unl/UNL_UCBCN_System,unl/UNL_UCBCN_System